Final answer:
B cells have receptors called B-cell receptors (BCRs) that can bind to antigens. B cells can bind to both monovalent and multivalent antigens. When B cells bind to monovalent antigens, they can directly recognize and bind to the antigens without the need for any other molecules or cells.
Step-by-step explanation:
B cells are a type of lymphocytes that play a key role in the immune response. They have receptors on their surface called B-cell receptors (BCRs) which can bind to antigens. These antigens can be either monovalent or multivalent.
When B cells bind to monovalent antigens, they can directly recognize and bind to the antigens without the need for any other molecules or cells. This interaction can activate B cells and stimulate them to produce antibodies.
On the other hand, when B cells bind to multivalent antigens, multiple BCRs on the surface of the B cell can bind to different epitopes on the antigen. This cross-linking of BCRs leads to a stronger signal and activation of the B cell, resulting in a more robust immune response.